These type of structures, that offer no redundancy, are called critical or determinant structures. If a local failure occurs the whole structure would collapse. As a result, the cantilever beam offers no redundancy in terms of supports. This is unwanted situation for a load carrying structure. Removing the singe support or inserting an internal hinge, would render the cantilever beam into a mechanism: a body the moves without restriction in one or more directions. The cantilever features only a single fixed support This free end is often called the tip of the cantilever. The other end is unsupported, and therefore it is free to move or rotate. The support is a, so called, fixed support that inhibits all movement, including vertical or horizontal displacements as well as any rotations. It features only one support, at one of its ends. The cantilever beam is one of the most simple structures.
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